function social() {
    //Fall für Einschalten
    if (document.getElementById('btn_switch').src.indexOf('/Website/socialshareprivacy/images/BUTTONON_TRANS.png') == -1) {
        document.getElementById('btn_switch').src = "/Website/socialshareprivacy/images/BUTTONON_TRANS.png";
        //Fix für IE
        if (navigator.userAgent.toLowerCase().match('msie'))
            document.getElementById('social_container').innerHTML = "<iframe marginwidth=\"0\" marginheight=\"0\" id=\"widgetbarframe\" src=\"\" scrolling=\"no\" frameborder=\"0\" style=\"width:140px; height:20px; margin-right: 3px;\"/>";
        //Fix für Chrome
        else if (navigator.userAgent.toLowerCase().match('chrome'))
            document.getElementById('social_container').innerHTML = "<iframe marginwidth=\"0\" marginheight=\"0\" id=\"widgetbarframe\" src=\"\" scrolling=\"no\" frameborder=\"0\" style=\"width:131px; height:30px; margin-right: 3px;\"/>";
        //Normalfall (ff)
        else {
            document.getElementById('social_container').innerHTML = "<iframe marginwidth=\"0\" marginheight=\"0\" id=\"widgetbarframe\" src=\"\" scrolling=\"no\" frameborder=\"0\" style=\"width:130px; height:30px; margin-right: 3px;\"/>";
        }
        document.getElementById('widgetbarframe').src = "/Website/socialframe.htm";
    }
    //Fall für Ausschalten 
    else if (document.getElementById('btn_switch').src.indexOf('/Website/socialshareprivacy/images/BUTTONOFF_TRANS.png') == -1) {
        document.getElementById('btn_switch').src = "/Website/socialshareprivacy/images/BUTTONOFF_TRANS.png";
        document.getElementById('widgetbarframe').src = "";
        document.getElementById('social_container').innerHTML = "<img id=\"dummy\" class=\"dummy\"  src=\"/Website/socialshareprivacy/images/addthis_trans_unloaded.png\" alt=\"\" />";
    }

}